All you have to do is put the walking amount in for w and basketball in for b. Do it for all of these, if it is less than 400 or greater than 600, it is not a solution.
(4 x 40) + (5 x 40) = 360 so reject because it is less than 400.
I'll let you do the rest.
Answer:
y = - 
Step-by-step explanation:
Substitute x = - 3 into the expression
2x - 7y = 30
2(- 3) - 7y = 30
- 6 - 7y = 30 ( add 6 to both sides )
- 7y = 36 ( divide both sides by - 7 )
y = 
= - 
Answer:
7x+8m+7
Step-by-step explanation:
2(3x+4m)+x+7 =
6x+8m+x+7=
7x+8m+7
Answer:
b=4
Step-by-step explanation:
-14+2b= -2b+2
Add 2b to each side
-14+2b+2b= -2b+2b+2
-14+4b =2
Add 14 to each side
-14+4b+14= 14+2
4b = 16
Divide each side by 4
4b/4 = 16/4
b =4
Answer:
to find the scale factor we just need to take one of the side lengths of the larger figure, 20, and divide it by the corresponding side length in the smaller figure, 8. Therefore 20/8 is correct
Step-by-step explanation:
